نتایج جستجو برای: li

تعداد نتایج: 44020  

Journal: :International Journal of Hydrogen Energy 2017

Journal: :Physical chemistry chemical physics : PCCP 2011
Andrew S Powell Zlatka Stoeva Ronald I Smith Duncan H Gregory Jeremy J Titman

A combined NMR and neutron diffraction study has been carried out on three Li(3-x-y)Cu(x)N materials with x=0.17, x=0.29 and x=0.36. Neutron diffraction indicates that the samples retain the P6/mmm space group of the parent Li(3)N with Cu located only on Li(1) sites. The lattice parameters vary smoothly with x in a similar fashion to Li(3-x-y)Ni(x)N, but the Li(2) vacancy concentration for the ...

2007
Martin Wilkening Paul Heitjans

Li diffusion in spinel-type structured cubic and hexagonal LixTiS2 with x = 0.6 and 0.7, respectively, was investigated by solid state NMR spectroscopy. In layered hexagonal LixTiS2, Li diffusion is known to be confined to the van-der-Waals gap between the TiS2 planes, i. e., it is two-dimensional (2D). In cubic LixTiS2, however, Li diffusion takes place in the three-dimensional (3D) interstiti...

2015
Reza Younesi Gabriel M. Veith Patrik Johansson Kristina Edström Tejs Vegge

Presently lithium hexafluorophosphate (LiPF6) is the dominant Li-salt used in commercial rechargeable lithium-ion batteries (LIBs) based on a graphite anode and a 3–4 V cathode material. While LiPF6 is not the ideal Li-salt for every important electrolyte property, it has a uniquely suitable combination of properties (temperature range, passivation, conductivity, etc.) rendering it the overall ...

Journal: :iranian journal of pharmaceutical research 0
seyed nasser ostad department of toxicology and pharmacology, faculty of pharmacy and pharmaceutical sciences research center, tehran university of medical sciences, tehran, iran hamid reza rahimi department of toxicology and pharmacology, faculty of pharmacy and pharmaceutical sciences research center, tehran university of medical sciences, tehran, iran mohammad hossein ghahremani department of toxicology and pharmacology, faculty of pharmacy and pharmaceutical sciences research center, tehran university of medical sciences, tehran, iran ahmad reza dehpour department of pharmacology, faculty of medicine, tehran university of medical sciences, tehran, iran mohammad sharifzadeh department of toxicology and pharmacology, faculty of pharmacy and pharmaceutical sciences research center, tehran university of medical sciences, tehran, iran shahram ejtemaei-mehr department of pharmacology, faculty of medicine, tehran university of medical sciences, tehran, iran

lithium (li), a glycogen synthase kinase-3β (gsk-3β) inhibitor, has used to attenuate thecannabinoid-induced dependence/withdrawal signs, but molecular mechanisms related to this areunclear. recent studies indicate the involvement of upstream extracellular signal kinase1/2 (erk1/2)and downstream gsk-3β pathways in the development of cannabinoid-induced dependence. thisis mediated through cannab...

2013
Zhong Peng Li-Zhen Li Mei-Jun Zhao

Eight apterous species of the paederine genus Lathrobium Gravenhorst, 1802 from the Chinese province Sichuan are described, illustrated, and distinguished from closely related and/or geographically close congeners: Lathrobium erlangense Peng & Li sp. n. (Erlang Shan), Lathrobium blandum Peng & Li sp. n. (Labahe N. R.), Lathrobium yelense Peng & Li sp. n. (Yele), Lathrobium obscurum Peng & Li sp...

Journal: :The journal of physical chemistry letters 2014
Mingjie Liu Alex Kutana Yuanyue Liu Boris I Yakobson

We study the Li clustering process on graphene and obtain the geometry, nucleation barrier, and electronic structure of the clusters using first-principles calculations. We estimate the concentration-dependent nucleation barrier for Li on graphene. While the nucleation occurs more readily with increasing Li concentration, possibly leading to the dendrite formation and failure of the Li-ion batt...

2003
P. S. Barklem A. K. Belyaev

Rate coefficients for inelastic collisions between Li and H atoms covering all transitions between the asymptotic states Li(2s,2p,3s,3p,3d,4s,4p,4d,4f )+H(1s) and Li+H are presented for the temperature range 2000–8000 K based on recent cross-section calculations. The data are of sufficient completeness for non-LTE modelling of the Li I 670.8 nm and 610.4 nm features in late-type stellar atmosph...

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